Portion of step ladder



FIG. 1 is perspective view of a portion of a step ladder showing my new design;

FIG. 2 is a front perspective view of a portion of a stepladder in a closed position;

FIG. 3 is a front elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a rear elevational view;

FIG. 6 is a right side elevational view

FIG. 7 is a top plan view;

FIG. 8 is a bottom plan view;

FIG. 9 is a sectional view of an upper brace through line 9—9 of FIG. 3and,

FIG. 10 is a sectional view of a lower brace through line 10—10 of FIG. 3.

The broken lines showing the interior channels, top and bottom of the angled supports and the remainder of the step ladder is for illustrative purposes only and form no part of the claimed design. 

An ornamental design for portion of step ladder, as shown and described. 